Example #1
0
    def put(self, type_):
        """Add item to ItemCollection."""
        if get_authentication():
            if request.authorization is None:
                return failed_authentication()
            else:
                try:
                    auth = check_authorization(request, get_session())
                    if auth is False:
                        return failed_authentication()
                except Exception as e:
                    status_code, message = e.get_HTTP()
                    return set_response_headers(jsonify(message), status_code=status_code)

        if checkEndpoint("PUT", type_):
            object_ = json.loads(request.data.decode('utf-8'))

            # Collections
            if type_ in get_doc().collections:

                collection = get_doc().collections[type_]["collection"]
                obj_type = collection.class_.title

                if validObject(object_):

                    if object_["@type"] == obj_type:
                        try:
                            object_id = crud.insert(object_=object_, session=get_session())
                            headers_ = [{"Location": get_hydrus_server_url()+get_api_name()+"/"+type_+"/"+str(object_id)}]
                            response = {"message": "Object with ID %s successfully deleted" % (object_id)}
                            return set_response_headers(jsonify(response), headers=headers_, status_code=201)
                        except Exception as e:
                            status_code, message = e.get_HTTP()
                            return set_response_headers(jsonify(message), status_code=status_code)

                return set_response_headers(jsonify({400: "Data is not valid"}), status_code=400)

            # Non Collection classes
            elif type_ in get_doc().parsed_classes and type_+"Collection" not in get_doc().collections:
                obj_type = getType(type_, "PUT")

                if object_["@type"] == obj_type:

                    if validObject(object_):
                        try:
                            object_id = crud.insert(object_=object_, session=get_session())
                            headers_ = [{"Location": get_hydrus_server_url()+get_api_name()+"/"+type_+"/"}]
                            response = {"message": "Object successfully added"}
                            return set_response_headers(jsonify(response), headers=headers_, status_code=201)
                        except Exception as e:
                            status_code, message = e.get_HTTP()
                            return set_response_headers(jsonify(message), status_code=status_code)

                return set_response_headers(jsonify({400: "Data is not valid"}), status_code=400)

        abort(405)
Example #2
0
def set_response_headers(resp: falcon.Response, ct: str="application/ld+json", headers: Dict[str, Any]={}, status_code = falcon.HTTP_200) -> falcon.Response:
    resp.status = status_code
    resp.set_headers(headers)
    resp.set_header('Content-type', ct)
    resp.set_header('Link' ,'<' + get_hydrus_server_url(resp) + \
        get_api_name(resp)+'/vocab>; rel="http://www.w3.org/ns/hydra/core#apiDocumentation"')
    return resp
Example #3
0
    def put(self, id_: str, path: str) -> Response:
        """Add new object_ optional <id_> parameter using HTTP PUT.

        :param id_ - ID of Item to be updated
        :param path - Path for Item type( Specified in APIDoc @id) to be updated
        """
        id_ = str(id_)
        auth_response = check_authentication_response()
        if isinstance(auth_response, Response):
            return auth_response

        class_type = get_doc().collections[path]["collection"].class_.title
        if checkClassOp(class_type, "PUT"):
            # Check if class_type supports PUT operation
            object_ = json.loads(request.data.decode('utf-8'))
            obj_type = getType(class_type, "PUT")
            # Load new object and type
            if validObject(object_) and object_["@type"] == obj_type:
                    try:
                        # Add the object with given ID
                        object_id = crud.insert(object_=object_, id_=id_, session=get_session())
                        headers_ = [{"Location": "{}{}/{}/{}".format(
                                get_hydrus_server_url(), get_api_name(), path, object_id)}]
                        response = {
                            "message": "Object with ID {} successfully added".format(object_id)}
                        return set_response_headers(
                            jsonify(response), headers=headers_, status_code=201)
                    except (ClassNotFound, InstanceExists, PropertyNotFound) as e:
                        status_code, message = e.get_HTTP()
                        return set_response_headers(jsonify(message), status_code=status_code)
            else:
                return set_response_headers(jsonify({400: "Data is not valid"}), status_code=400)
        else:
            abort(405)
Example #4
0
    def post(self, type_):
        """Update Non Collection class item."""
        if get_authentication():
            if request.authorization is None:
                return failed_authentication()
            else:
                try:
                    auth = check_authorization(request, get_session())
                    if auth is False:
                        return failed_authentication()
                except Exception as e:
                    status_code, message = e.get_HTTP()
                    return set_response_headers(jsonify(message), status_code=status_code)

        if checkEndpoint("POST", type_):
            object_ = json.loads(request.data.decode('utf-8'))

            if type_ in get_doc().parsed_classes and type_+"Collection" not in get_doc().collections:
                obj_type = getType(type_, "POST")

                if validObject(object_):

                    if object_["@type"] == obj_type:
                        # try:
                            crud.update_single(object_=object_, session=get_session(), api_name=get_api_name())
                            headers_ = [{"Location": get_hydrus_server_url()+get_api_name()+"/"+type_+"/"}]
                            response = {"message": "Object successfully updated"}
                            return set_response_headers(jsonify(response), headers=headers_)
                        # except Exception as e:
                        #     status_code, message = e.get_HTTP()
                        #     return set_response_headers(jsonify(message), status_code=status_code)

                return set_response_headers(jsonify({400: "Data is not valid"}), status_code=400)

        abort(405)
Example #5
0
    def put(self, path, int_list="") -> Response:
        """
        To insert multiple objects into the database
        :param path: endpoint
        :param int_list: Optional String containing ',' separated ID's
        :return:
        """
        auth_response = check_authentication_response()
        if isinstance(auth_response, Response):
            return auth_response

        endpoint_ = checkEndpoint("PUT", path)
        if endpoint_['method']:
            # If endpoint and PUT method is supported in the API
            object_ = json.loads(request.data.decode('utf-8'))
            object_ = object_["data"]
            if path in get_doc().collections:
                # If collection name in document's collections
                collection = get_doc().collections[path]["collection"]
                # title of HydraClass object corresponding to collection
                obj_type = collection.class_.title
                if validObjectList(object_):
                    type_result = type_match(object_, obj_type)
                    # If Item in request's JSON is a valid object
                    # ie. @type is one of the keys in object_
                    if type_result:
                        # If the right Item type is being added to the
                        # collection
                        try:
                            # Insert object and return location in Header
                            object_id = crud.insert_multiple(
                                objects_=object_,
                                session=get_session(),
                                id_=int_list)
                            headers_ = [{
                                "Location":
                                "{}/{}/{}".format(get_hydrus_server_url(),
                                                  get_api_name(), path,
                                                  object_id)
                            }]
                            response = {
                                "message":
                                "Object with ID {} successfully added".format(
                                    object_id)
                            }
                            return set_response_headers(jsonify(response),
                                                        headers=headers_,
                                                        status_code=201)
                        except (ClassNotFound, InstanceExists,
                                PropertyNotFound) as e:
                            status_code, message = e.get_HTTP()
                            return set_response_headers(
                                jsonify(message), status_code=status_code)

                return set_response_headers(jsonify({400:
                                                     "Data is not valid"}),
                                            status_code=400)

        abort(endpoint_['status'])
Example #6
0
    def on_put(self, req, resp, id_: int, type_: str):
        """Add new object_ optional <id_> parameter using HTTP PUT.

        :param id_ - ID of Item to be updated
        :param type_ - Type(Class name) of Item to be updated
        """
        if get_authentication(resp):
            if req.auth is None:
                return failed_authentication(resp)
            else:
                try:
                    auth = check_authorization(req, get_session(resp))
                    if auth is False:
                        return failed_authentication(resp)
                except Exception as e:
                    status_code, message = e.get_HTTP()  # type: ignore
                    resp.media = message
                    return set_response_headers(resp, status_code=status_code)

        class_type = get_doc(
            resp).collections[type_]["collection"].class_.title

        if checkClassOp(resp, class_type, "PUT"):
            # Check if class_type supports PUT operation
            object_ = req.media
            obj_type = getType(resp, class_type, "PUT")
            # Load new object and type
            if validObject(object_):
                if object_["@type"] == obj_type:
                    try:
                        # Add the object with given ID
                        object_id = crud.insert(object_=object_,
                                                id_=id_,
                                                session=get_session(resp))
                        headers_ = [{
                            "Location":
                            get_hydrus_server_url(resp) + get_api_name(resp) +
                            "/" + type_ + "/" + str(object_id)
                        }]
                        response = {
                            "message":
                            "Object with ID %s successfully added" %
                            (object_id)
                        }
                        resp.media = response
                        return set_response_headers(
                            resp,
                            headers=headers_[0],
                            status_code=falcon.HTTP_201)
                    except Exception as e:
                        status_code, message = e.get_HTTP()
                        resp.media = message
                        return set_response_headers(resp,
                                                    status_code=status_code)

            return set_response_headers(resp, status_code=falcon.HTTP_400)

        resp.status = falcon.HTTP_405
Example #7
0
def set_response_headers(resp, ct="application/ld+json", headers=[], status_code=200):
    """Set the response headers."""
    resp.status_code = status_code
    for header in headers:
        resp.headers[list(header.keys())[0]] = header[list(header.keys())[0]]
    resp.headers['Content-type'] = ct
    resp.headers['Link'] = '<' + get_hydrus_server_url() + \
        get_api_name()+'/vocab>; rel="http://www.w3.org/ns/hydra/core#apiDocumentation"'
    return resp
Example #8
0
    def post(self, id_: int, type_: str) -> Response:
        """Update object of type<type_> at ID<id_> with new object_ using HTTP POST."""
        if get_authentication():
            if request.authorization is None:
                return failed_authentication()
            else:
                try:
                    auth = check_authorization(request, get_session())
                    if auth is False:
                        return failed_authentication()
                except Exception as e:
                    status_code, message = e.get_HTTP()  # type: ignore
                    return set_response_headers(jsonify(message),
                                                status_code=status_code)

        class_type = get_doc().collections[type_]["collection"].class_.title

        if checkClassOp(class_type, "POST"):

            object_ = json.loads(request.data.decode('utf-8'))
            obj_type = getType(class_type, "POST")

            if validObject(object_):

                if object_["@type"] == obj_type:
                    try:
                        object_id = crud.update(object_=object_,
                                                id_=id_,
                                                type_=object_["@type"],
                                                session=get_session(),
                                                api_name=get_api_name())
                        headers_ = [{
                            "Location":
                            get_hydrus_server_url() + get_api_name() + "/" +
                            type_ + "/" + str(object_id)
                        }]
                        response = {
                            "message":
                            "Object with ID %s successfully updated" %
                            (object_id)
                        }
                        return set_response_headers(jsonify(response),
                                                    headers=headers_)

                    except Exception as e:
                        status_code, message = e.get_HTTP()  # type: ignore
                        return set_response_headers(jsonify(message),
                                                    status_code=status_code)

            return set_response_headers(jsonify({400: "Data is not valid"}),
                                        status_code=400)

        abort(405)
Example #9
0
    def on_post(self, req, resp, type_: str):
        """
        Method executed for POST requests.
        Used to update a non-collection class.

        :param type_ - Item type
        """
        if get_authentication(resp):
            if req.auth is None:
                return failed_authentication(resp)
            else:
                try:
                    auth = check_authorization(req, get_session(resp))
                    if auth is False:
                        return failed_authentication(resp)
                except Exception as e:
                    status_code, message = e.get_HTTP()  # type: ignore
                    resp.media = message
                    return set_response_headers(resp, status_code=status_code)

        endpoint_ = checkEndpoint(resp, "POST", type_)
        if endpoint_['method']:
            object_ = req.media
            if type_ in get_doc(
                    resp
            ).parsed_classes and type_ + "Collection" not in get_doc(
                    resp).collections:
                obj_type = getType(resp, type_, "POST")
                if validObject(object_):
                    if object_["@type"] == obj_type:
                        try:
                            crud.update_single(object_=object_,
                                               session=get_session(resp),
                                               api_name=get_api_name(resp))
                            headers_ = [{
                                "Location":
                                get_hydrus_server_url(resp) +
                                get_api_name(resp) + "/" + type_ + "/"
                            }]
                            response = {
                                "message": "Object successfully updated"
                            }
                            resp.media = response
                            return set_response_headers(resp,
                                                        headers=headers_[0])
                        except Exception as e:
                            status_code, message = e.get_HTTP()
                            resp.media = message
                            return set_response_headers(
                                resp, status_code=status_code)

                return set_response_headers(resp, status_code=falcon.HTTP_400)
Example #10
0
def set_response_headers(resp: Response,
                         ct: str = "application/ld+json",
                         headers: List[Dict[str, Any]] = [],
                         status_code: int = 200) -> Response:
    """Set the response headers."""
    resp.status_code = status_code
    for header in headers:
        resp.headers[list(header.keys())[0]] = header[list(header.keys())[0]]
    resp.headers['Content-type'] = ct
    link = "http://www.w3.org/ns/hydra/core#apiDocumentation"
    resp.headers['Link'] = '<{}{}/vocab>; rel="{}"'.format(
        get_hydrus_server_url(), get_api_name(), link)
    return resp
Example #11
0
    def post(self, id_: str, path: str) -> Response:
        """Update object of type<path> at ID<id_> with new object_ using HTTP POST.

        :param id_ - ID of Item to be updated
        :param path - Path for Item type( Specified in APIDoc @id)
        """
        id_ = str(id_)
        auth_response = check_authentication_response()
        if isinstance(auth_response, Response):
            return auth_response

        class_type = get_doc().collections[path]["collection"].class_.title

        if checkClassOp(class_type, "POST"):
            # Check if class_type supports POST operation
            object_ = json.loads(request.data.decode('utf-8'))
            obj_type = getType(class_type, "POST")
            # Load new object and type
            if validObject(object_):
                if object_["@type"] == obj_type:
                    try:
                        # Update the right ID if the object is valid and matches
                        # type of Item
                        object_id = crud.update(object_=object_,
                                                id_=id_,
                                                type_=object_["@type"],
                                                session=get_session(),
                                                api_name=get_api_name())
                        headers_ = [{
                            "Location":
                            get_hydrus_server_url() + get_api_name() + "/" +
                            path + "/" + str(object_id)
                        }]
                        response = {
                            "message":
                            "Object with ID %s successfully updated" %
                            (object_id)
                        }
                        return set_response_headers(jsonify(response),
                                                    headers=headers_)

                    except (ClassNotFound, InstanceNotFound, InstanceExists,
                            PropertyNotFound) as e:
                        status_code, message = e.get_HTTP()
                        return set_response_headers(jsonify(message),
                                                    status_code=status_code)

            return set_response_headers(jsonify({400: "Data is not valid"}),
                                        status_code=400)

        abort(405)
Example #12
0
    def post(self, id_: int, type_: str) -> Response:
        """Update object of type<type_> at ID<id_> with new object_ using HTTP POST.

        :param id_ - ID of Item to be updated
        :param type_ - Type(Class name) of Item to be updated
        """
        auth_response = check_authentication_response()
        if type(auth_response) == Response:
            return auth_response

        class_type = get_doc().collections[type_]["collection"].class_.title

        if checkClassOp(class_type, "POST"):
            # Check if class_type supports POST operation
            object_ = json.loads(request.data.decode('utf-8'))
            obj_type = getType(class_type, "POST")
            # Load new object and type
            if validObject(object_):
                if object_["@type"] == obj_type:
                    try:
                        # Update the right ID if the object is valid and matches
                        # type of Item
                        object_id = crud.update(object_=object_,
                                                id_=id_,
                                                type_=object_["@type"],
                                                session=get_session(),
                                                api_name=get_api_name())
                        headers_ = [{
                            "Location":
                            get_hydrus_server_url() + get_api_name() + "/" +
                            type_ + "/" + str(object_id)
                        }]
                        response = {
                            "message":
                            "Object with ID %s successfully updated" %
                            (object_id)
                        }
                        return set_response_headers(jsonify(response),
                                                    headers=headers_)

                    except Exception as e:
                        status_code, message = e.get_HTTP()  # type: ignore
                        return set_response_headers(jsonify(message),
                                                    status_code=status_code)

            return set_response_headers(jsonify({400: "Data is not valid"}),
                                        status_code=400)

        abort(405)
Example #13
0
    def put(self, id_: int, type_: str) -> Response:
        """Add new object_ optional <id_> parameter using HTTP PUT.

        :param id_ - ID of Item to be updated
        :param type_ - Type(Class name) of Item to be updated
        """
        auth_response = check_authentication_response()
        if type(auth_response) == Response:
            return auth_response

        class_type = get_doc().collections[type_]["collection"].class_.title

        if checkClassOp(class_type, "PUT"):
            # Check if class_type supports PUT operation
            object_ = json.loads(request.data.decode('utf-8'))
            obj_type = getType(class_type, "PUT")
            # Load new object and type
            if validObject(object_):
                if object_["@type"] == obj_type:
                    try:
                        # Add the object with given ID
                        object_id = crud.insert(object_=object_,
                                                id_=id_,
                                                session=get_session())
                        headers_ = [{
                            "Location":
                            get_hydrus_server_url() + get_api_name() + "/" +
                            type_ + "/" + str(object_id)
                        }]
                        response = {
                            "message":
                            "Object with ID %s successfully added" %
                            (object_id)
                        }
                        return set_response_headers(jsonify(response),
                                                    headers=headers_,
                                                    status_code=201)
                    except (ClassNotFound, InstanceExists,
                            PropertyNotFound) as e:
                        status_code, message = e.get_HTTP()
                        return set_response_headers(jsonify(message),
                                                    status_code=status_code)

            return set_response_headers(jsonify({400: "Data is not valid"}),
                                        status_code=400)

        abort(405)
Example #14
0
    def put(self, id_, type_):
        """Add new object_ optional <id_> parameter using HTTP PUT."""
        if get_authentication():
            if request.authorization is None:
                return failed_authentication()
            else:
                auth = check_authorization(request, get_session())
                if auth is False:
                    return failed_authentication()

        class_type = get_doc().collections[type_]["collection"].class_.title

        if checkClassOp(class_type, "PUT"):

            object_ = json.loads(request.data.decode('utf-8'))
            obj_type = getType(class_type, "PUT")

            if validObject(object_):

                if object_["@type"] == obj_type:
                    try:
                        object_id = crud.insert(object_=object_,
                                                id_=id_,
                                                session=get_session())
                        headers_ = [{
                            "Location":
                            get_hydrus_server_url() + get_api_name() + "/" +
                            type_ + "/" + str(object_id)
                        }]
                        response = {
                            "message":
                            "Object with ID %s successfully added" %
                            (object_id)
                        }
                        return set_response_headers(jsonify(response),
                                                    headers=headers_,
                                                    status_code=201)

                    except Exception as e:
                        status_code, message = e.get_HTTP()
                        return set_response_headers(jsonify(message),
                                                    status_code=status_code)

            return set_response_headers(jsonify({400: "Data is not valid"}),
                                        status_code=400)

        abort(405)
Example #15
0
    def post(self, path: str) -> Response:
        """
        Method executed for POST requests.
        Used to update a non-collection class.

        :param path - Path for Item type ( Specified in APIDoc @id)
        """
        auth_response = check_authentication_response()
        if isinstance(auth_response, Response):
            return auth_response

        endpoint_ = checkEndpoint("POST", path)
        if endpoint_['method']:
            object_ = json.loads(request.data.decode('utf-8'))
            if path in get_doc().parsed_classes and "{}Collection".format(path) not in get_doc(
            ).collections:
                obj_type = getType(path, "POST")
                if check_read_only_props(obj_type, object_):
                    if object_["@type"] == obj_type and check_required_props(
                            obj_type, object_) and validObject(object_):
                        try:
                            crud.update_single(
                                object_=object_,
                                session=get_session(),
                                api_name=get_api_name(),
                                path=path)

                            headers_ = [
                                {"Location": "{}/{}/".format(
                                    get_hydrus_server_url(), get_api_name(), path)}]
                            response = {
                                "message": "Object successfully updated"}
                            return set_response_headers(
                                jsonify(response), headers=headers_)
                        except (ClassNotFound, InstanceNotFound,
                                InstanceExists, PropertyNotFound) as e:
                            status_code, message = e.get_HTTP()
                            return set_response_headers(
                                jsonify(message), status_code=status_code)

                    return set_response_headers(
                        jsonify({400: "Data is not valid"}), status_code=400)
                else:
                    abort(405)

        abort(endpoint_['status'])
Example #16
0
    def post(self, type_: str) -> Response:
        """
        Method executed for POST requests.
        Used to update a non-collection class.

        :param type_ - Item type
        """
        auth_response = check_authentication_response()
        if type(auth_response) == Response:
            return auth_response

        endpoint_ = checkEndpoint("POST", type_)
        if endpoint_['method']:
            object_ = json.loads(request.data.decode('utf-8'))
            if type_ in get_doc(
            ).parsed_classes and type_ + "Collection" not in get_doc(
            ).collections:
                obj_type = getType(type_, "POST")
                if validObject(object_):
                    if object_["@type"] == obj_type:
                        try:
                            crud.update_single(object_=object_,
                                               session=get_session(),
                                               api_name=get_api_name())
                            headers_ = [{
                                "Location":
                                get_hydrus_server_url() + get_api_name() +
                                "/" + type_ + "/"
                            }]
                            response = {
                                "message": "Object successfully updated"
                            }
                            return set_response_headers(jsonify(response),
                                                        headers=headers_)
                        except (ClassNotFound, InstanceNotFound,
                                InstanceExists, PropertyNotFound) as e:
                            status_code, message = e.get_HTTP()
                            return set_response_headers(
                                jsonify(message), status_code=status_code)

                return set_response_headers(jsonify({400:
                                                     "Data is not valid"}),
                                            status_code=400)

        abort(endpoint_['status'])
Example #17
0
    def put(self, path: str) -> Response:
        """
        Method executed for PUT requests.
        Used to add an item to a collection

        :param path - Path for Item type ( Specified in APIDoc @id)
        """
        auth_response = check_authentication_response()
        if isinstance(auth_response, Response):
            return auth_response

        endpoint_ = checkEndpoint("PUT", path)
        if endpoint_['method']:
            # If endpoint and PUT method is supported in the API
            object_ = json.loads(request.data.decode('utf-8'))

            if path in get_doc().collections:
                # If collection name in document's collections
                collection = get_doc().collections[path]["collection"]

                # title of HydraClass object corresponding to collection
                obj_type = collection.class_.title

                if validObject(object_):
                    # If Item in request's JSON is a valid object
                    # ie. @type is one of the keys in object_
                    if object_["@type"] == obj_type:
                        # If the right Item type is being added to the
                        # collection
                        try:
                            # Insert object and return location in Header
                            object_id = crud.insert(object_=object_,
                                                    session=get_session())
                            headers_ = [{
                                "Location":
                                get_hydrus_server_url() + get_api_name() +
                                "/" + path + "/" + str(object_id)
                            }]
                            response = {
                                "message":
                                "Object with ID %s successfully added" %
                                (object_id)
                            }
                            return set_response_headers(jsonify(response),
                                                        headers=headers_,
                                                        status_code=201)
                        except (ClassNotFound, InstanceExists,
                                PropertyNotFound) as e:
                            status_code, message = e.get_HTTP()
                            return set_response_headers(
                                jsonify(message), status_code=status_code)

                return set_response_headers(jsonify({400:
                                                     "Data is not valid"}),
                                            status_code=400)

            elif path in get_doc(
            ).parsed_classes and path + "Collection" not in get_doc(
            ).collections:
                # If path is in parsed_classes but is not a collection
                obj_type = getType(path, "PUT")
                if object_["@type"] == obj_type:
                    if validObject(object_):
                        try:
                            object_id = crud.insert(object_=object_,
                                                    session=get_session())
                            headers_ = [{
                                "Location":
                                get_hydrus_server_url() + get_api_name() +
                                "/" + path + "/"
                            }]
                            response = {"message": "Object successfully added"}
                            return set_response_headers(jsonify(response),
                                                        headers=headers_,
                                                        status_code=201)
                        except (ClassNotFound, InstanceExists,
                                PropertyNotFound) as e:
                            status_code, message = e.get_HTTP()
                            return set_response_headers(
                                jsonify(message), status_code=status_code)

                return set_response_headers(jsonify({400:
                                                     "Data is not valid"}),
                                            status_code=400)

        abort(endpoint_['status'])
Example #18
0
    def on_put(self, req, resp, type_: str):
        """
        Method executed for PUT requests.
        Used to add an item to a collection

        :param type_ - Item type
        """
        if get_authentication(resp):
            if req.auth is None:
                return failed_authentication(resp)
            else:
                try:
                    auth = check_authorization(req, get_session(resp))
                    if auth is False:
                        return failed_authentication(resp)
                except Exception as e:
                    status_code, message = e.get_HTTP()  # type: ignore
                    resp.media = message
                    return set_response_headers(resp, status_code=status_code)

        endpoint_ = checkEndpoint(resp, "PUT", type_)
        if endpoint_['method']:
            # If endpoint and PUT method is supported in the API
            object_ = req.media

            if type_ in get_doc(resp).collections:
                # If collection name in document's collections
                collection = get_doc(resp).collections[type_]["collection"]

                # title of HydraClass object corresponding to collection
                obj_type = collection.class_.title

                if validObject(object_):
                    # If Item in request's JSON is a valid object
                    # ie. @type is one of the keys in object_
                    if object_["@type"] == obj_type:
                        # If the right Item type is being added to the collection
                        try:
                            # Insert object and return location in Header
                            object_id = crud.insert(object_=object_,
                                                    session=get_session(resp))
                            headers_ = [{
                                "Location":
                                get_hydrus_server_url(resp) +
                                get_api_name(resp) + "/" + type_ + "/" +
                                str(object_id)
                            }]
                            response = {
                                "message":
                                "Object with ID %s successfully added" %
                                (object_id)
                            }
                            resp.media = response
                            return set_response_headers(
                                resp,
                                headers=headers_[0],
                                status_code=falcon.HTTP_201)
                        except Exception as e:
                            status_code, message = e.get_HTTP()
                            resp.media = message
                            return set_response_headers(
                                resp, status_code=status_code)

                return set_response_headers(resp, status_code=falcon.HTTP_400)

            elif type_ in get_doc(
                    resp
            ).parsed_classes and type_ + "Collection" not in get_doc(
                    resp).collections:
                # If type_ is in parsed_classes but is not a collection
                obj_type = getType(resp, type_, "PUT")
                if object_["@type"] == obj_type:
                    if validObject(object_):
                        try:
                            object_id = crud.insert(object_=object_,
                                                    session=get_session(resp))
                            headers_ = [{
                                "Location":
                                get_hydrus_server_url(resp) +
                                get_api_name(resp) + "/" + type_ + "/"
                            }]
                            response = {"message": "Object successfully added"}
                            resp.media = response
                            return set_response_headers(
                                resp,
                                headers=headers_[0],
                                status_code=falcon.HTTP_201)
                        except Exception as e:
                            status_code, message = e.get_HTTP()
                            resp.media = message
                            return set_response_headers(
                                resp, status_code=status_code)

                return set_response_headers(resp, status_code=falcon.HTTP_400)