Fix types

packages/client/src/utils/schema.ts

@@ -1,5 +1,5 @@
 import { API } from "api"
-import { DataFetchMap } from "@budibase/frontend-core"
+import { DataFetchMap, DataFetchType } from "@budibase/frontend-core"
 
 /**
  * Constructs a fetch instance for a given datasource.
@@ -8,12 +8,20 @@ import { DataFetchMap } from "@budibase/frontend-core"
  * @param datasource the datasource
  * @returns
  */
-const getDatasourceFetchInstance = (datasource: { type: string }) => {
+const getDatasourceFetchInstance = <
+  TDatasource extends { type: DataFetchType }
+>(
+  datasource: TDatasource
+) => {
   const handler = DataFetchMap[datasource?.type]
   if (!handler) {
     return null
   }
-  return new handler({ API, datasource })
+  return new handler({
+    API,
+    datasource: datasource as never,
+    query: null as any,
+  })
 }
 
 /**
@@ -21,21 +29,23 @@ const getDatasourceFetchInstance = (datasource: { type: string }) => {
  * @param datasource the datasource to fetch the schema for
  * @param options options for enriching the schema
  */
-export const fetchDatasourceSchema = async (
+export const fetchDatasourceSchema = async <
-  datasource,
+  TDatasource extends { type: DataFetchType }
+>(
+  datasource: TDatasource,
   options = { enrichRelationships: false, formSchema: false }
 ) => {
   const instance = getDatasourceFetchInstance(datasource)
-  const definition = await instance?.getDefinition(datasource)
+  const definition = await instance?.getDefinition()
-  if (!definition) {
+  if (!instance || !definition) {
     return null
   }
 
   // Get the normal schema as long as we aren't wanting a form schema
-  let schema
+  let schema: any
   if (datasource?.type !== "query" || !options?.formSchema) {
-    schema = instance.getSchema(definition)
+    schema = instance.getSchema(definition as any)
-  } else if (definition.parameters?.length) {
+  } else if ("parameters" in definition && definition.parameters?.length) {
     schema = {}
     definition.parameters.forEach(param => {
       schema[param.name] = { ...param, type: "string" }
@@ -55,7 +65,12 @@ export const fetchDatasourceSchema = async (
   }
 
   // Enrich schema with relationships if required
-  if (definition?.sql && options?.enrichRelationships) {
+  if (
+    definition &&
+    "sql" in definition &&
+    definition.sql &&
+    options?.enrichRelationships
+  ) {
     const relationshipAdditions = await getRelationshipSchemaAdditions(schema)
     schema = {
       ...schema,
@@ -71,20 +86,26 @@ export const fetchDatasourceSchema = async (
  * Fetches the definition of any kind of datasource.
  * @param datasource the datasource to fetch the schema for
  */
-export const fetchDatasourceDefinition = async datasource => {
+export const fetchDatasourceDefinition = async <
+  TDatasource extends { type: DataFetchType }
+>(
+  datasource: TDatasource
+) => {
   const instance = getDatasourceFetchInstance(datasource)
-  return await instance?.getDefinition(datasource)
+  return await instance?.getDefinition()
 }
 
 /**
  * Fetches the schema of relationship fields for a SQL table schema
  * @param schema the schema to enrich
  */
-export const getRelationshipSchemaAdditions = async schema => {
+export const getRelationshipSchemaAdditions = async (
+  schema: Record<string, any>
+) => {
   if (!schema) {
     return null
   }
-  let relationshipAdditions = {}
+  let relationshipAdditions: Record<string, any> = {}
   for (let fieldKey of Object.keys(schema)) {
     const fieldSchema = schema[fieldKey]
     if (fieldSchema?.type === "link") {
@@ -92,7 +113,10 @@ export const getRelationshipSchemaAdditions = async schema => {
         type: "table",
         tableId: fieldSchema?.tableId,
       })
-      Object.keys(linkSchema || {}).forEach(linkKey => {
+      if (!linkSchema) {
+        continue
+      }
+      Object.keys(linkSchema).forEach(linkKey => {
         relationshipAdditions[`${fieldKey}.${linkKey}`] = {
           type: linkSchema[linkKey].type,
           externalType: linkSchema[linkKey].externalType,

packages/frontend-core/src/fetch/DataFetch.ts

@@ -369,7 +369,7 @@ export default abstract class DataFetch<
    * @param schema the datasource schema
    * @return {object} the enriched datasource schema
    */
-  private enrichSchema(schema: TableSchema): TableSchema {
+  enrichSchema(schema: TableSchema): TableSchema {
     // Check for any JSON fields so we can add any top level properties
     let jsonAdditions: Record<string, { type: string; nestedJSON: true }> = {}
     for (const fieldKey of Object.keys(schema)) {