ff-admin-server/src/type/dynamicQueries.ts

export interface DynamicQueryStructure {
  select: string[] | "*";
  table: string;
  where?: Partial<ConditionStructure>;
  join?: Array<DynamicQueryStructure & { foreignColumn: string }>;
  orderBy?: { [key: string]: "ASC" | "DESC" };
}

export type ConditionStructure = {
  [opt in WhereOptions]: Partial<ConditionStructure> | { [column: string]: Partial<ConditionOperation> };
};

export type ConditionOperation = {
  [op in WhereOperation]: FieldType | Array<FieldType> | { start: FieldType; end: FieldType };
};

export type FieldType = number | string | Date | boolean;

export type WhereOptions = "OR" | "AND";

export type WhereOperation =
  | "eq" //	Equal
  | "neq" //	Not equal
  | "lt" //	Less than
  | "lte" //	Less than or equal to
  | "gt" //	Greater than
  | "gte" //	Greater than or equal to
  | "in" //	Included in an array
  | "notIn" //	Not included in an array
  | "contains" //	Contains
  | "notContains" //	Does not contain
  | "null" //	Is null
  | "notNull" //	Is not null
  | "between" //	Is between
  | "startsWith" //	Starts with
  | "endsWith"; //	Ends with

const exampleQuery: DynamicQueryStructure = {
  select: ["firstname", "lastname"],
  table: "member",
  where: {
    AND: {
      mail: { endsWith: "@gmail.com" },
      OR: {
        firstname: { startsWith: "J" },
        lastname: { endsWith: "K" },
      },
    },
  },
  join: [
    {
      select: "*",
      table: "communication",
      foreignColumn: "sendNewsletter",
    },
  ],
  orderBy: {
    firstname: "ASC",
    lastname: "ASC",
  },
};