ERM : Entity Relationship Manager
Graph-based data model to manage entities (nodes) and their relationships (edges) with the following features:
- Support for different storage providers (e.g. elasticsearch)
- RESTful & GraphQL APIs
- Strongly typed field definitions and localizable property values.
- Run elasticsearch locally (using http://localhost:9200) or change Vouzamo.ERM.Api > Startup.js for alternative options / providers.
- Build & run the Vouzamo.ERM.Api project.
- Use GraphiQL (/graphiql) to interact with GraphQL.
Lets use an example to explain how to produce a data model:
Using GraphiQL, run the following mutation:
mutation CreateNodeTypes {
types {
human: create(name: "Human", scope: NODES) {
id
}
dog: create(name: "Dog", scope: NODES) {
id
}
cat: create(name: "Cat", scope: NODES) {
id
}
}
}This will return the id for each created type which you can use in the following mutations to add fields:
mutation AddHumanFields($givenName: FieldInput!, $middleNames: FieldInput!, $familyName: FieldInput!, $description: FieldInput!) {
types {
givenName: addField(id: "{id}", field: $givenName)
middleNames: addField(id: "{id}", field: $middleNames)
familyName: addField(id: "{id}", field: $familyName)
description: addField(id: "{id}", field: $description)
}
}
//variables
{
"givenName": {
"type": "string",
"key": "givenName",
"name": "Given Name",
"mandatory": true,
"enumerable": false,
"localizable": false
},
"middleNames": {
"type": "string",
"key": "middleNames",
"name": "Middle Names",
"mandatory": false,
"enumerable": true,
"localizable": false
},
"familyName": {
"type": "string",
"key": "familyName",
"name": "Family Name",
"mandatory": true,
"enumerable": false,
"localizable": false
},
"description": {
"type": "string",
"key": "description",
"name": "Description",
"mandatory": false,
"enumerable": false,
"localizable": true
}
}Note: Remember to replace {id} with the value returned by the previous mutation for the Human type.
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